<html>
<head>
<script type="text/JavaScript">
var url = "doa.jpg"; //url to load image from
var refreshInterval = 500; //in ms
var drawDate = true; //draw date string
var img;

function init() {
    var canvas = document.getElementById("canvas");
    var context = canvas.getContext("2d");
    img = new Image();
    img.onload = function() {
        canvas.setAttribute("width", img.width)
        canvas.setAttribute("height", img.height)
        context.drawImage(this, 0, 0);
    };
    refresh();
}
function refresh()
{
    img.src = url + "?t=" + new Date().getTime();
    setTimeout("refresh()",refreshInterval);
}

</script>
<title>KerberosSDR DOA Graph</title>
</head>

<body onload="JavaScript:init();">
<canvas id="canvas"/>
</body>
</html>
